Backed by
Combinator

Email Inboxes for AI Agents

AgentMail is the email inbox API for AI agents. It gives agents their own email inboxes, like Gmail does for humans.

from agentmail import AgentMail

client = AgentMail()

inbox = client.inboxes.create(
username="hello",
domain="agentmail.to"
)
Create Inbox

It's not AI for your email. It's email for your AI.

Create, manage, and operate email inboxes entirely via API.

Inboxes API illustration

Capabilities

Build agents that act like humans.

Curious User

Jan 01

Webhooks or WebSockets?

Hi, I'm building an AI agent that needs to receive emails and reply to them in real-time. Can you help me understand whether I should use Webhooks or WebSockets for the implementation?

Received

Inquiry

Happy Customer

Dec 31

Email Agent Memory

Hey, Earlier I was discussing memory for my email agent in the Discord. Someone suggested using the inbox as a memory store and the search function to retrieve it. It's working great!

Received

Process inbound

Give your agents inboxes from where they can receive, recall, and reply to emails autonomously.

Subject

Schedule Meeting

Hey Marcus,

Thanks for your message, I'd be happy to chat! I have CC'd my scheduling agent to help us find a time.

Looking forward to it!

Michael

Join conversations

Address your agents in conversation, so they can listen in passively or respond actively.

Identify and authenticate

Enable agents to sign up, receive 2FA codes, and authenticate with external services.

Subject

Meeting Followup

Scheduled for

09:00 AM, Monday

Hi Marcus,

I am Michael's personal assistant agent. He asked me to follow up regarding your meeting with him.

He's excited to be involved! Are you available to discuss further this week?

Best,
Michael's Assistant

Automate outbound

Draft and send personalized emails from your agents to other humans or even other agents.

Pricing

Transparent pricing that scales with you.

Free
For getting started

$0/month

No credit card required

3 inboxes

3,000 emails/month

3 GB storage

Developer
For individual developers

$20/month

10 inboxes

10,000 emails/month

10 GB storage

10 custom domains

Email support

Startup
For scaling teams

$200/month

150 inboxes

150,000 emails/month

150 GB storage

150 custom domains

Dedicated IPs

SOC 2 report

Slack channel support

Enterprise
For tailored solutions

Custom

Everything in Startup tier

Custom volume pricing

White-label platform

BYO cloud deployment

OIDC/SAML SSO

Book a call

Email Inboxes for AI Agents

SOC2 Type II Certified

© 2026 AgentMail, Inc. All rights reserved.

Privacy PolicyTerms of Service